Homework Help: Science

Branches of Science

Recent Homework Questions About Science

Science
How can you experimentally determine the weight of your own head?
Sunday, November 13, 2011 at 4:41pm

science
1) How do hormones from the thyroid gland and parathyoid gland work together?
Sunday, November 13, 2011 at 1:30pm

Science
What determines the color of obkects that emit light and what determines the color of objects that do not? I wrote that color of objects that emit light is determined by the wavelenghts of light waves that they emit.Then I wrote that if an object does not emit light, then it ...
Sunday, November 13, 2011 at 12:49pm

Science
This is for my science hw:Sound in an empty room can be very loud, with many echoes. Describe three ways to make the room quieter. The thing is that I looked online, asked my friends for help, and everything but no avail! This has to have a scientific explanation, I assume, ...
Sunday, November 13, 2011 at 12:19pm

science
I want to do a science fair project on which skin moisturizer works best. How can I find some ideas on ways to test this? Thank you!
Sunday, November 13, 2011 at 11:07am

science
How long does a pathogen live in the body?
Saturday, November 12, 2011 at 10:39pm

Science
Do you have an example or format for a science project literary review?
Saturday, November 12, 2011 at 9:58pm

Science
Hi can you please check my work. A mutation that occurs in a diploid cell can be inherited only if A) the mutated allele is recessive. B) the mutated allele is dominant. C) the mutation occurs in a cell that produces gametes. D) the same mutation also occurs on the homologous ...
Saturday, November 12, 2011 at 1:36pm

6th grade science
limestone is made of the remains of organisms.In what way have decaying plants changed Florida's limestone bedrock? 1) decaying plants acidify water,which desolves limestones 2)decaying plants absorb water,which keeps limestone from dissolving 3)decaying plants changed ...
Friday, November 11, 2011 at 6:15pm

6th grade science
which soil conservation technique did George Washington Carver urge farmers to use??? 1) crop rotation 2) cover crops 3) contour plowing 4) no-till farming
Friday, November 11, 2011 at 6:03pm

6th grade science
Mechanical weathering occurs at a greater rate in climates that are 1) cold and wet 2) warm and wet 3) hot and dry 4) cold and dry
Friday, November 11, 2011 at 5:49pm

science
What object has a capacity of exactly 80 cups. 1.Bucket 2.Punch Bowl 3.Fish Tank 4.Sink
Friday, November 11, 2011 at 5:41pm

English
I urgently need to revise these sentences. Could you please help me? 1) In my family we are six of us: my father, my mother etc. 2) I like very much playing instruments. I don't like doing shopping. I like lots of sports. 3) My mum usually cooks breakfast for me. At 10.30 ...
Friday, November 11, 2011 at 4:38pm

Science
My question is, What was the function of a capacitor in an electric current? Could someone please help me I ruled out one of my theorys already and that was to increase circuit power. Was it to allow current flow between its plates? Was it to measure the amount of current in ...
Friday, November 11, 2011 at 3:00pm

science
what would the astronauts weight be on the lunar surface?
Thursday, November 10, 2011 at 10:26pm

science
what would the astronauts mass be on the lunar surface?
Thursday, November 10, 2011 at 10:25pm

science
how much less is the gravity on the lunar surface than on earth?
Thursday, November 10, 2011 at 10:24pm

science
at what distance is an astronaut exactly half his or her weight?
Thursday, November 10, 2011 at 10:22pm

math2
Dan had to complete the remaining 1/3 of his science project this week. On Monday, he completed 4/5 of the work he had left to do. What part of the entire project did Dan complete on Monday? Can you guide me on how to figure it out?
Thursday, November 10, 2011 at 7:29pm

Science
When a sound wave passes from air into a solid object, which of the following wave properties change? -frequency -wave speed -amplitude -wave length Can be more than one
Thursday, November 10, 2011 at 7:17pm

math
Dan had to complete the remaining 1/3 of his science project this week. On Monday, he completed 4/5 of the work he had left to do. What part of the entire project did Dan complete on Monday?
Thursday, November 10, 2011 at 7:11pm

Science
If i am provided with a supply of 2M of sulphuric acid,how can i explain how to prepare 500ml of 0.5M sulphuric?
Thursday, November 10, 2011 at 2:23pm

Science
3. Which factor below helps species avoid extinction? A. Low reproductive rates B. high economic importance C. limited habitats in which to live D. able to adapt to changes in their habitat I think its D. 4. If there continues to be a loss in biodiversity in plants and animals...
Thursday, November 10, 2011 at 10:32am

Science
I just need to know if i got these right? 1.If we take out parts of our ecosystem, then other parts of it are affected. A. True B.False 2.All animals have the same risk of extinction. A.True B.False I think 1 is false and 2.is true
Thursday, November 10, 2011 at 10:24am

science-SCI/230
This is my first time using Jishka. Well, registering and using the site. I have checked the site when researching class topics we are learning. I don’t think I really have a question but I am looking for clarity of something for class. I just want to make sure that I ...
Thursday, November 10, 2011 at 3:38am

Science
How many families are found in the Phylum Arthropoda?
Wednesday, November 9, 2011 at 10:26pm

Science-Please help
Can someone tell me what this question means I don't understand it: Violent weather - thunderstorm- Why must Charge Separation be tremendous prior too the occurrence of lightning?
Wednesday, November 9, 2011 at 9:10pm

science
What elements does the compound MgCL2, magnesium chloride, contain? A. Chloride only B. Magnesium only C. M
Wednesday, November 9, 2011 at 8:26pm

Science
Does intensity increase as amplitude increases? (in reference to SOUND WAVES) Or does it decrease? I'm so confused now. I wrote that loudness, energy and intensity inreases as amplitude increases. Am I right? thank you.
Wednesday, November 9, 2011 at 8:12pm

science
home challenge iron in cereal. What happens when water is added to total cereal
Wednesday, November 9, 2011 at 7:15pm

Science
What instrument are used to measure mass?
Wednesday, November 9, 2011 at 6:12pm

science
how does the wind blow around high and lows along and near the surface in the northtern hemisphere?
Wednesday, November 9, 2011 at 4:36pm

English
I was referring to my previous sentence: they checked (in) their bags for cigarettes. I urgently need to check these sentences. I believe there are mistakes in the word choice,. Thank you. 1) Another blow (I need a synonym) to traditional beliefs came from the new philosophers...
Wednesday, November 9, 2011 at 10:17am

science
Earthquakes occur because of _____. plate tectonics cracks in the crust landslides volcanoes
Wednesday, November 9, 2011 at 12:30am

science
the lack of atmosphere.
Tuesday, November 8, 2011 at 9:25pm

math PLEASE HURRY
there are 24 students in a science class. Mr. Sato will give each pair of students 3 magnets. So far, Mr. Sato has given 9 pairs of students their 3 magnets. homw many more magents does Mr. Sato need so that each pair of students has excatly 3 magnets.
Tuesday, November 8, 2011 at 9:24pm

science
the tracks of the astronauts who landed on the moon are still there in the dust and show no signs of being worn away.this is attruted to the lack of atmosphere on the moon. which of the following best accounts for the lack of atmosphere.
Tuesday, November 8, 2011 at 9:22pm

Science
An Olympic bobsledder pushes a 200 kg bobsled at 8 m/s. If the man pushes with a force of 1200 N, how much force of friction is present?
Tuesday, November 8, 2011 at 9:19pm

Science
Can you give me a link to where I can find a paragraph of about 30 words on soil and it's properties?!?!?! Please help! i've been doing this for 5 hours and I need to go to sleep.
Tuesday, November 8, 2011 at 8:56pm

algebraic expressions
there are 24 students in a science class. Mr. Sato will give each pair of students 3 magnets. So far, Mr. Sato has given 9 pairs of students their 3 magnets. homw many more magents does Mr. Sato need so that each pair of students has excatly 3 magnets.
Tuesday, November 8, 2011 at 8:48pm

Science
Are all tornadoes cyclones. I have read many sites some say they are others say no. Can someone give me an accurate site please
Tuesday, November 8, 2011 at 8:38pm

Science
What would the application be to my experiment which was "We dig through soil and check for inorganic and organic matter in the soil and look for natural things in the soil(ex; beans,feather,rocks,sticks,and grass)" Please I need your help URGENT! ! !
Tuesday, November 8, 2011 at 8:17pm

Science 6TH Grade
What would the application be to my experiment which was "We dig through soil and check for inorganic and organic matter in the soil and look for natural things in the soil(ex; beans,feather,rocks,sticks,and grass)" Please help! ive been on this for 4 hours now and ...
Tuesday, November 8, 2011 at 7:45pm

Science
once the shell has been removed, the next layer of the egg is exposed would represent what specific part of an animal cell.
Tuesday, November 8, 2011 at 6:58pm

science plz
Please can you describe the organic and inorganic properties of soil, i need help for my statement of purpose?!?
Tuesday, November 8, 2011 at 5:52pm

science
I have been searching for a website that tells me about soil and its properties but i cant find one, but my friend recommended Jishka so i am asking if i could get a link???please it would be a huge help ~
Tuesday, November 8, 2011 at 5:47pm

pleez! science stuff
What is the application be on my project which was "me and my class go out and check the soil for organic things and beans and natural stuff + to describe what it looks like what color,shape,texture, and size the things we found are" PLEEZ! help i still have tons of ...
Tuesday, November 8, 2011 at 5:27pm

science urgent!
What are the organic and inorganic properties of soil, Describe.
Tuesday, November 8, 2011 at 5:20pm

Science(egg in vinegar) PLease check my answer
what biological model does the egg represent? stomach it shows what happens to protein iif you put it into an acid.
Tuesday, November 8, 2011 at 5:19pm

Science
What are they asking in this question? Which is an alternative source of energy?
Tuesday, November 8, 2011 at 5:18pm

Science
Different kinds of sedimentary rocks exist because A. they were formed in different places B. their formation took different lengths of time C. they were formed by sediments from different rocks D. they have been cut differently I THINK ITS C is that right?
Tuesday, November 8, 2011 at 4:40pm

science
I grew in a cave,but i,m not alive, I began as water and minerals, but now I am solid, I grow upwards, but I never see the sky
Tuesday, November 8, 2011 at 3:17pm

maths for social science
. A project management consultant estimated that if a particular project was completed, that t years after its date of completion, P thousand persons would be direct beneficiaries of the project, where P (t) = t3/3 - 5t2 +20t, 0<t<12 For what value of t will the maximum ...
Monday, November 7, 2011 at 11:31pm

Science
Who else might buy oil-eating bacteria besides oil spill cleanup companies?
Monday, November 7, 2011 at 11:12pm

Science
Calulate the force needed to accelerate a 2,300 kg mass at 5.5m/s/s acceleration.
Monday, November 7, 2011 at 10:18pm

7th grade science
what are two ways a population may decrease in number? Explain the difference between direct and indirect observation in regard to determining population size. Please help!!! Thank you!!
Monday, November 7, 2011 at 9:01pm

Science
what are the common SI unit for volume?
Monday, November 7, 2011 at 8:40pm

7th grade science
what are two ways a population may increase in number? what is the main way? Please help!!! Thank you!!!
Monday, November 7, 2011 at 8:38pm

science
A disk and a ring, both of mass and radius, are placed at the bottom of an incline and allowed to roll down. Give an expression for the kinetic energy of the disk at the bottom of the incline in terms of mass, radius and translational velocity. how does this kinetic energy ...
Monday, November 7, 2011 at 5:56pm

Science
The list of words is: Nucleus, Mitochondria, Vacoule, Cell Wall. Which does not belong and why?
Monday, November 7, 2011 at 5:55pm

Physical Science
What is the bond type of silicon difluoride?
Monday, November 7, 2011 at 12:12pm

Science
If you mix 40.0 grams of Cu with 50.0ml of 1.20 M HNO3 solution, how many grams of NO gas can be made?
Monday, November 7, 2011 at 6:02am

Science
"a glass of water is at 60 degrees C if the temperature of water drops to 40 degrees C its specific volume will?
Monday, November 7, 2011 at 4:58am

Science
Hi I'm pretty sure the answer is A, but I'm not completely positive. Am i correct? Which of the following pairs of words can be used correctly to describe alleles? A) dominant or recessive B) homozygous or heterozygous C) genotype and phenotype D) codependent and ...
Sunday, November 6, 2011 at 8:36pm

physical science
a yo-yo is swung in a vertical circle in such a way that its total energy KE+ Pe is constant. At what point in the circle is the speed a maximum? minimum? why?
Sunday, November 6, 2011 at 8:30pm

Science
How do you set up a controlled experiment ? What's the purpose of a control group? How many variables should a controlled experiment have? What are the difference between observation and inferences? I REALLY NEED HELP!!!! PLEASE HELP ME !!!!
Sunday, November 6, 2011 at 7:51pm

Science
What are the main rules of safety that we follow in science classes
Sunday, November 6, 2011 at 7:31pm

Science
A wave geneerantor produces 16.0 pulses in 4.00s . What is the frequence ?
Sunday, November 6, 2011 at 6:16pm

Science
Identify commonly used lab equipment. (beaker, graduated cylinder, triple beam balance, test tube, Patri dish) I really dont need answer. Does this means I have to write definations for each lab equipment???? I really need help.
Sunday, November 6, 2011 at 4:45pm

political science
In need of help on my political science homework please help with these questions Only these questions left! One reason why the US has only 2 major parties is that it has: A. insufficient opportunities to bribe candidates B. too much involvement by religious groups C.single-...
Sunday, November 6, 2011 at 3:59pm

science
preparation of copper sulphate crystals excess copper oxide is needed above a)how do you know the solid is in excess? b)how do you remove the excess? c)what colour is the solution? d)give the next to steps to make crystals?
Sunday, November 6, 2011 at 11:56am

Science (Chemistry)
I'm not sure how to do a couple of problems on my chemistry worksheet. Can you please help me? You dissolve 0.00902 g of naOH in enough water to make 1000 mL. What is the Ph of this soultion. What is the molarity, pH, and pOH of 5.00 of naOH in 750.0 mL of soultion. I know...
Sunday, November 6, 2011 at 10:18am

science
your weight is 600 newtons and you have just finished building a raft which weighs 1000 newtons. what is the smallest upthrust force needed so that it will float with just you on it ? (please answer really quick )
Sunday, November 6, 2011 at 8:22am

Science
Why are your ears at the side of your head and not in front where your eyes are?
Sunday, November 6, 2011 at 7:01am

Science
How is the technology of Sonar related to the social, environmental, political, ethical, and the economical condition of a country? Please explain it clearly
Sunday, November 6, 2011 at 6:42am

Science-Biology
If a mother has brown eyes and a father has blue eyes why do two of their children have blue eyes and one have brown eyes?
Sunday, November 6, 2011 at 5:29am

Economics
Thomas Malthus’s gloomy predictions for the future of humanity led ‘economies’ to be called a ‘dismal science’. Show either through the mathematics of production functions or intuitively, that predictions of such gloom may have been misplaced.
Saturday, November 5, 2011 at 10:27pm

engineering
I need help in my homework concerning Fire Science Engineering. Acetone is released into the diked area surrounding its storage tank. The dike measures 40 feet long by 30 feet wide. What heat is the Heat Release Rate should it catch on fire? This help will be appreciated. Thanks.
Saturday, November 5, 2011 at 10:19pm

Science
Who invented the computer ????
Saturday, November 5, 2011 at 3:59pm

Science-Biology
To note: all three are blond, ellie's eyes are brown, her brothers are blue. Ellie's father is homozygous for eye colour but her mother is heterozygous. She passed a 'blue eye' gene to the boys and a 'brown eye' gene to Ellie. Brown hair is dominant ...
Saturday, November 5, 2011 at 3:15pm

science
a small light source located 1m in front of a 1m2 opening illuminates a wall behind. If the wall is 1m behind the opening 2m from the light source.
Saturday, November 5, 2011 at 11:50am

science-biology
why do we study the human organ system?
Saturday, November 5, 2011 at 5:56am

Science
A car travelling at 27 m/s2 hits a wall with 48,600 N of force. What was the car's mass?
Friday, November 4, 2011 at 3:57pm

Science
A 0.2 kg falcon hits a mouse with a force of 5 N. What was its acceleration?
Friday, November 4, 2011 at 3:57pm

Science
The force of a 0.001 kg penny falling at 70 m/s2
Friday, November 4, 2011 at 3:56pm

Science
The force of a 4 kg bowling ball to accelerate to 6 m/s2
Friday, November 4, 2011 at 3:56pm

Science
Force of a 1500 kg rhino to accelerate to 4m/s2 How do I figure this out?
Friday, November 4, 2011 at 3:54pm

science
what is potential diffrence in details
Friday, November 4, 2011 at 12:11pm

science
Please help with this as I can not understand it at all. Imagine you've been shown a seismogram from an earthquake on which you can see the first arrival of P waves, followed some time later by the first arrival of S waves. You work out that the S wave arrived 5 minutes ...
Friday, November 4, 2011 at 9:14am

Science
How much work does the hiker do if he uses 800 n of force to walk 100 meters?
Thursday, November 3, 2011 at 9:28pm

SCIENCE
Conservation of natural resources could include- A. the use of more renewable sources of energy B. cutting down on the use of fossil fuels C. replacing soil and planting trees D. all of the above
Thursday, November 3, 2011 at 9:15pm

science
How did Archimedias prove mathematically that salt water and diving were related to buoyancy?
Thursday, November 3, 2011 at 8:04pm

University studies
According to the Center for Mathematics Excellence, which of the following is a math myth? A. Knowing the rules and how to use them is the most important part of math. B. Even people who are highly skilled in mathematics and science find these subjects to be challenging C. ...
Thursday, November 3, 2011 at 7:40pm

science
On Apollo missions to the Moon, the command module orbited at an altitude of 150 above the lunar surface. How long did it take for the command module to complete one orbit?
Thursday, November 3, 2011 at 6:09pm

Physical Science
DISTANCE-TIME for RUNNERS Time(s) 1 2 3 4 Sally's Distance(m) 2 4 6 8 Alonzo's Distance(m) 1 2 2 4 Make a distance-time graph that shows the motion of both runners. What is the average speed of each runner? Which runner stops briefly? Over what time interval do they ...
Thursday, November 3, 2011 at 5:24pm

SCIENCE
Most electricity is produced using fossil fuels. Some people think electricity should be produced using resources such as wind,water,and solar energy. Why might people have this opinion?
Thursday, November 3, 2011 at 5:22pm

science, ocean currents
waste produced by people in delaware has been dumped into the atlantic ocean, where it is distributed by surface ocean currents. which coastal area is most likely to become polluted by this waste
Thursday, November 3, 2011 at 5:11pm

to Katie A A
#1 - The school subject is MATH, not "help" -- I've never heard of a school subject called help. #2 - To quote one of our very good math and science tutors: “You will find here at Jiskha that long series of questions, posted with no evidence of effort or ...
Thursday, November 3, 2011 at 4:25pm

computer science 104
Create a method areaOfaTrapeziod when given a, b, and h (all doubles), will return the area (double) of a trapezoid. Use the equation pictured below In the code, i should 1. Create the prototype for the method 2. create the method 3. call it from the main()
Thursday, November 3, 2011 at 3:58pm

science!
1. A plane accelerated from a speed of 2.0 m/s at the rate of 3.0 m/s2 over a distance of 530 m. What is its speed after traveling this distance? 2. A jet plane must achieve a velocity of 71 m/s for takeoff. From rest and with a 1,000 m long runway, what must the acceleration ...
Thursday, November 3, 2011 at 9:28am

Science
At an accident scene, 276-m long skid marks are found on the road. If the car that made these skid marks can decelerate at –9.8 m/s2, how fast was the car going before braking?
Thursday, November 3, 2011 at 9:28am

science
How much potash alum is prepared by 6g Al2(SO4)3 & 1.5g K2SO4?
Thursday, November 3, 2011 at 7:47am

physical science
If a book sits on a shelf1.5 m above the floor.One frienf tells you that the book's mechanical energy is zero, and another says it is not . Who is correct?
Thursday, November 3, 2011 at 7:39am

science
How much potash alum is prepared by 6g Al2(SO4)3 & 1.5g K2SO4?
Thursday, November 3, 2011 at 7:39am

Science
Technology has been used for centuries to study the ocean. Trace the history of one piece of technology. What do you think is the most important technology to study the ocean? And why do you think so?
Thursday, November 3, 2011 at 4:52am

science (PLEASE HELP)
Why is condensation on the beaker resulted from burning methane a chemical reaction?
Thursday, November 3, 2011 at 12:34am

Science
a bus trip covers 191 km and takes 4 hours and 15 miniutes. What is the average speed of the bus in kilometers per hour?
Wednesday, November 2, 2011 at 11:54pm

science
was is density if mass = 10g and volume = 2cm squared?
Wednesday, November 2, 2011 at 11:33pm

Computer science
THIS IS C PROGRAMMING I NEED TO CREATE A METHOD! Create a method areaOfaTrapeziod when given a, b, and h (all doubles), will return the area (double) of a trapezoid. Use the equation pictured below. THANKS IN ADVANCE :)
Wednesday, November 2, 2011 at 10:22pm

physical science
A certain radioactive substance has a half-life of 1 hour. If you start with 1 gram of the material at noon, how much will be left at 3:00 P.M.? At 6:00 P.M.? At 10:00 P.M.?
Wednesday, November 2, 2011 at 10:08pm

Science
-What is Pot of Gold? -What did inferences could scientist make from Pot of Gold on Mars?
Wednesday, November 2, 2011 at 9:01pm

Science
Explain changes of state between solids and liquids and between liquids and gases?
Wednesday, November 2, 2011 at 8:40pm

Science
Why is water only compound occuring naturally on earth in three states?
Wednesday, November 2, 2011 at 8:38pm

environmental science
Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains population growth?
Wednesday, November 2, 2011 at 6:44pm

Science
when you ride in a train that passes a train moving in the opposite direction, the other train appears to rush past you at a greater speed than if you were watching from a parked car at a crossing. how does the speed of your train affect your impression of the passing train&#...
Wednesday, November 2, 2011 at 6:37pm

Science
Plural Noun That Change Spelling .Write the plural noun for each singular noun. Wolf man tooth
Wednesday, November 2, 2011 at 6:21pm

engineering
I need help with a Fire Science Engineering homework. A fuel has heat of combustion equal to 30 kj/g. How much energy is released when 5 kilograms are oxidized? Assuming the fuel is reacted in 10 minutes, what is the average heat release rate for the fire? This will be greatly...
Wednesday, November 2, 2011 at 5:40pm

science
How does soil most impact living things? A. different soils cause temperature extremes. B. different soils support different types of plants. C. different soils absorb different amounts of sunlight. D. different soils are different colors. My answer is B my next question What ...
Wednesday, November 2, 2011 at 5:31pm

Science
What is the source of energy in fossil fuels?
Wednesday, November 2, 2011 at 5:30pm

science
you push a 12.5 kg cart with a force of 14 N if the cart starts from rest how far does it move in 3 seconds?
Wednesday, November 2, 2011 at 4:42pm

science
how to calculate percent error
Wednesday, November 2, 2011 at 4:41pm

science
In the lab you need to make 1.00 L of a 0.300 M NaCl solution. You had previously made a 0.950 M NaCl solution that you can dilute to form your new solution. How many mL of the concentrated solution would you use to make the dilute solution?
Wednesday, November 2, 2011 at 3:56pm

physical science
a charge of + 2x10-7c is 10cm from a charge of -6x10-6c find magnitude and direction of force on each charge
Wednesday, November 2, 2011 at 2:47pm

science
Observe one hour in a classroom (preschool, pre-kindergarten, kindergarten
Wednesday, November 2, 2011 at 1:30pm

English
Had to write a haiku related to science, is this ok? Chemicals make boom Chemicals should not be ate It makes good science Thank you!
Wednesday, November 2, 2011 at 9:31am

Science
Examine the obvious environmental impacts as well as significant social and physical ramifications of urban sprawl. What is the relationship between landscape and psychological well being? After defining this relationship, discuss how the presence or absence of natural beauty ...
Wednesday, November 2, 2011 at 6:09am

English
I have to write a Haiku with has to do with Science, please let me know if this is good. Science is great fun you get to use chemicals, but safety is first. Thank you.
Wednesday, November 2, 2011 at 2:36am

English
I have to write a Haiku related to science, not sure what I need to do. Please help.
Wednesday, November 2, 2011 at 1:33am

Science (urgent)
I have 2 biology questions I really need help with, they are due tommorow and I don't know if I'm right. 1)As an energy carrier, ATP differs from NADPH in that: a)ATP carries less energy than NADPH. b)ATP transfers energy through redox reactions whereas NADPH uses ...
Tuesday, November 1, 2011 at 8:29pm

science virus
i have a question do you think the influenza virus is a active or hidden virus and explain, im really not sure. i said active cause once you get it you feel the sympton right away. can you help me with this?
Tuesday, November 1, 2011 at 8:15pm

Physical Science
Based on a data table of their preliminary observations, which is shown below, complete the final column entitled: “Number of Valence Electrons” and then answer the questions that follow. Element Name Symbol Group Number Alkalininium A 1 Earthium E 2 Redonkulinium R ...
Tuesday, November 1, 2011 at 7:39pm

Science
What are two changes in weather patterns caused by el nino that can cause disasters?
Tuesday, November 1, 2011 at 7:19pm

science
What are some social, economic, aesthetics, and ethical issues involved in a current environmental controversy?
Tuesday, November 1, 2011 at 6:45pm

SCIENCE
Is water natural resources,renewable resources,or reusable resources?
Tuesday, November 1, 2011 at 5:19pm

science
how do you tell till and outwash plains apart?
Tuesday, November 1, 2011 at 5:07pm

science
What does a maple tree do for a community? A. it creates energy B. It creates food C. It looks nice D. it stores water My answer is B.
Tuesday, November 1, 2011 at 4:44pm

science
What term almost always describe top consumers. A)herbivores B)omnivore C)carnivores D)decomposer
Tuesday, November 1, 2011 at 3:42pm

science
What does a maple tree do for a community.
Tuesday, November 1, 2011 at 3:37pm

Computer Science (MATLAB)
I had a test in my computer science course in which I was asked if any while loop can be replaced with a for loop. I put true. I guess the answer was false. My professor said that if you had a while loop in which you asked the user to input a certain value that had to be ...
Tuesday, November 1, 2011 at 3:02pm

algebra
My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match people up. During ...
Tuesday, November 1, 2011 at 12:22pm

Science: Chem
How many milliliters of 0.10 M HCl must be added to 52.0 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M?
Tuesday, November 1, 2011 at 10:36am

science
In the United States, we are fortunate to have an abundant supply of food, and much of this is due to our agricultural technology. However, there are many concerns about our food source, including genetically modified crops, the use of more chemicals, and climate change just ...
Tuesday, November 1, 2011 at 6:15am

science chemistry
enumerate the 100 alkanes and its molecular formula
Monday, October 31, 2011 at 11:42pm

Science
Different elements have different kinds of atoms. How can you tell an atom of one element from an atom of another? A. the number of electrons B. the number of neutrons C. the number of nuclei D. the number of protons
Monday, October 31, 2011 at 11:02pm

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